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4 Environmental Analysis 4.1 Aesthetics application of anti-reflective coatings, the Project would display overall low reflectivity. Therefore, the Project will have a less than significant impact associated with lighting and glare. Mitigation: None required. 4.1.6 Mitigation Measures The following mitigation measures are recommended to reduce significant impacts to aesthetics. AES-1.The following measure will be implemented as feasible to reduce visual impacts for Project components and activities: oo Use and maintain, as feasible, non-reflective materials, finishes, and surface treatments. oo Maintain painted, treated, stained, or coated surfaces properly. oo Direct lights properly to eliminate light spill and trespass. oo Use timers or motion sensors, as feasible, on all project lighting to minimize unnecessary lighting. oo Minimize lighting usage, as feasible, during construction and operations. 4.1.7 Pacific Gas and Electric Tesla Substation Improvement To accommodate the Project, PG&E would be responsible for siting, design, and construction of the gen-tie line from the point of change of ownership (POCO) to its substation. Two options are available for the gen-tie line route from this point. The first option would be to connect via an aboveground line from the POCO to a point on the west side of the southwestern boundary of the substation. The second option is to enter the substation on the southwestern edge by way of a belowground line as shown in Figure 2-1 of Chapter 2, Project Description. Either right-of-way corridor is assumed to be up to 100 feet in width. Additionally, PG&E would upgrade the Tesla Substation, and the improvements would include the installation of a grounding system, disconnect switches, surge arresters, outdoor lighting and outlets, and fiber termination for the gen-tie line. The improvements made would be within the existing Tesla Substation footprint. The PG&E improvements would increase infrastructure within the existing Tesla Substation, these elements would appear similar and consistent with the existing infrastructure and would result in little noticeable change from existing conditions. Therefore, visual character and visual quality would be similar compared to existing conditions. Construction, operation, maintenance and decommissioning of the PG&E interconnection infrastructure would result in a less than significant impact relating to the potential for a substantial adverse effect on a scenic vista, a substantial degradation of the character or visual quality of views from publicly accessible vantage points (i.e., any of the KOPs), or to substantially damage scenic resources within a state scenic highway. Similarly, because the new infrastructure would not include substantial new sources of light or glare, the Project-proposed construction and modifications of PG&E infrastructure would have a less than significant impact. No mitigation is required. Griffith Energy Storage Project 4.1-32 Tetra Tech/SCH 2022120675 Draft Environmental Impact Report August 2023